Stop-go indicator



May 24, 1932. H. c. wEBB STOP-Go INDIGATOR Filed March '17, 1931Patented May 24, 1932 V f ll/Iy invention relates to a new and usefulstop and go indicator for automobiles and other' movable bodies in whichchanges 'of acceleration are imparted to the body, and

the objects of my invention are to provide such an indicator which willaccurately show the direction of acceleration, `one which will be simpleand economical to construct, one which will have few moving parts, andone which will be symmetrical in appearance,

and thereby give an air of myst-ery to theV indicator in go position.'Fig 5 is avsec-V tional view on line 5-5 of F ig. 2. Fig. 6 is aninvertedvlew of Fig. 2. i g

Simllar numerals and reference characters refer to similar partsthroughout the several views. v

The automobile A has the usual gasoline tank T at the rear thereof,and-on this tank T the indicator 1 is fixed by means of bracket 2 beingscrewed to the tank. The rod 8, pivoting in bracket 2, is bent intoa Tformation 4 at its lower end, each arm of the T acting as a rotationstop for the rod 3 by striking against the bracket 2. i i Fast to thetop of rod 3, and rotat'i'ng therewith are 'radialarms 5-5, 6-6, arms5--5 preferably being made of one piece of `:material and 6 6 of,another, with their` angles being partly cut out and interlocked 'JUover rod 3 like the sections of a hinge over their pintle. arms v6 6,either because made of heavier material or because weighted, but it: isdesirable to have them appear symmetrical, so W that an air of mysterywill surround the operation of the indicator.

i Stops 4 permit the indicator to turn. through an angle ofsubstantially 90 degrees.v

When the automobile starts from rest, heavy arms 5- 5are urged, by theforward acrceler- Arms '545 areheavier than? FSTATS PATENT, f

i HERBEL' c. WEBB, or BALTIMORE oonN'rY, MARYLANgo i ation lof the car,Vo'nelto to 1;its farthest w back p0siti0n,'m 'respect to the-piwafana'the other to'move back as far :as 'stop will'admit,whichiSfiXed-tolet the arml come to la acceleration of the car.

substantial-right angleto the'direction :of

When thecar stops, the backward "accel-= tion of`forward,'afcc'eleration to inoveiffo'r-v` Ward, pointing opposite. ,tothe' "direction, of

eration given it causes first lthe heavy' arm i which had been atright-angles'v to the dire'cf-. i

the new acceleration, and this'l'and the 'newv i Iacceleration'zpulls'the'fother heavy' arm'faround to substantially aright i angle to the' i direction ;of thefa-cceleration, where) itisagain 1 limited by the other end- V of stop 4' striking bracket.`

In eachinstance the rigidly attachedlight-- 1 er arms 64-6 follow along.With the move- Vments of the heavier arms. Theyalso make 'i uniformthe'air and wind resistance to the movement of the heavler' arms. Thewords GomGo are onopposite arms, and Stop-f Stop'on' the other oppositepair,jso that the f motorist in the rear may know whatmovement the frontdriver is giving his-car, thus the rear driver may go or vstop and avoidcollisions and delay, he being informed by o 'the indicator of themovements of the car in advance. i

Many changes and modifications may' he made in mynew indicator withoutdepart-' ing from the spirit of my'invention, there- .fore, I intendnotto be limited to thestrucj ture shown, but what 'I claim as new anddesiretosecure by Letters Patent is:

1. A movable body acceleration reversal indicator, 'comprising fourright angular raz dially projecting arms horizontally rotatable on saidbody, two radiallyl adjacent arms 'i being heavier than theirrespective' opposite arms, stops to limit the rotation of said! o arms,one when' one heavy Varm is at right i I angles tothe direction ofacceleration and anotheriwhen the other heavy arm is at right angles tothe direction of acceleration.v i

i 2. A-movable body acceleration reversal infdicator, comprising tworight angular'placed arms, rotatable horizontally at their inters'ec-1:00'

tion on said body, stops to limit the rotation`v vintersection on saidbody, stops to lrection to that of of said arms tosubstantially 90degrees, one a stop when one arm is snbstantially parallel to thedirection of acceleration and the other stop when the other arm issubstantia-lly parallel to the direction of acceleration.

3. i A movable body acceleration reversal indicator, comprising tWoright` angularly placed arms, rotatable horizontally at their limit therotation of said arms to substantally 90 degrees, one stop when one'armis substantially a i i parallel to the direction of acceleration and theother stop When the other arm is substantially parallel to the direetionof accelergatOn, the arm at right angles to the direction ofacceleration serving, in each instance,

tobegin the rotation of said arms upon a re'- Versal of acceleration. l

4. A movable body acceleration reversal in dicator, comprising two rightangularly placed arms, rotatable horizontallyV at their intersection onsaid body, rotation of said arms to substantially 90degrees, one stopwhen one arm is substantally parallel to the direetion of accelerationand the other stop when the other arm is substantially parallel to thedirection of aoceleration, the arm substantially: parallel to thedirection of accelerationpointing, With yits free end, in each nstanoe,in the opposite di;

the acceleration reversal.

HERBERT C. WEBB.

stops to limit the

